Calculate your estimated quarterly tax payments to avoid underpayment penalties. Perfect for freelancers and small business owners.
Enter your expected annual income
Input your projected total income for the tax year, including self-employment, freelance, and any other taxable earnings.
Enter deductions
Add expected deductions such as business expenses, retirement contributions, and the standard or itemized deduction.
View quarterly payment amounts
Review the estimated tax owed for each quarter, divided into four equal installments.
See payment due dates
Check the IRS quarterly due dates so you can schedule payments on time and avoid underpayment penalties.
Tax rates verified against official government sources for the 2025-2026 tax year
Published by ConvertCrunch Editorial Team | Our Methodology
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Next Step
Continue with Paycheck Calculator
Include any estimated tax payments or W-2 withholdings already made this year.
If you're self-employed, a freelancer, or earn significant income without tax withholding, the IRS expects you to pay estimated taxes quarterly rather than waiting until April. Failing to make these payments on time can result in underpayment penalties.
You generally need to make estimated tax payments if you expect to owe $1,000 or more in taxes after subtracting withholdings and credits. This applies to self-employed individuals, freelancers, landlords, investors, and anyone with income not subject to employer withholding.
To avoid underpayment penalties, you must pay at least one of the following through withholding and estimated payments:
Meeting either threshold qualifies you for the "safe harbor" provision, meaning you won't owe penalties even if you end up owing additional tax when you file your return.
Set aside 25-30% of each payment you receive into a separate savings account earmarked for taxes. Many freelancers are caught off guard by their tax bill because they spend income without accounting for the tax liability. Using IRS Form 1040-ES or an online tool like this calculator helps you stay on track.